This is an auto-generated mail on Fri Apr 16 12:00:00 PDT 1999 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to xara.net for giving me access to their routing tables once a day. Please send any comments about this report directly to me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report.  ------------------------------------------------------------------------------ CIDR REPORT for 16Apr99 0) General Status Table History ------------- Date Prefixes 090499 58050 100499 58045 110499 58080 120499 58147 130499 58117 140499 58177 150499 58448 160499 58374 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 3500 Number of ASes announcing only one prefix: 1134 (0 cidr, 1134 classful) Largest number of cidr routes: 0 announced by Largest number of classful routes: 815 announced by AS701  1) Gains by aggregating at the origin AS level --- 16Apr99 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS271 355 147 208 58.6% BCnet Backbone AS4293 290 183 107 36.9% IMCI AS226 206 100 106 51.5% USC/Information Sciences Institut AS174 586 492 94 16.0% Performance Systems International AS577 270 177 93 34.4% Bell Canada Backbone AS4755 168 78 90 53.6% Videsh Sanchar Nigam Ltd. India AS2493 219 131 88 40.2% iSTAR Internet, Inc. AS1785 457 369 88 19.3% NYSERNet Backbone AS3749 141 63 78 55.3% TECNET AS4200 167 96 71 42.5% AGIS (Apex Global Information Ser AS1267 94 24 70 74.5% IUNET-AS AS7496 96 30 66 68.8% Power Up AS7545 110 46 64 58.2% TPG Internet Pty Ltd AS1221 445 381 64 14.4% AARNET-AS AS7046 258 197 61 23.6% UUNET-CUSTOMER AS4740 339 278 61 18.0% Ozemail Pty Ltd (ASN-OZEMAIL) AS7657 180 121 59 32.8% The Internet Group Limited AS1239 526 467 59 11.2% SprintLink Backbone AS10928 110 52 58 52.7% UNKNOWN AS72 92 40 52 56.5% Schlumberger Information Network AS719 464 412 52 11.2% LANLINK autonomous system AS3493 233 182 51 21.9% INTERLINK AS5674 80 36 44 55.0% PBI-NET-BLK AS3737 110 70 40 36.4% PenTeleData Inc. (ASN-PTD) AS803 74 38 36 48.6% SaskNet Backbone AS7745 39 4 35 89.7% BIGSKY-AS AS1 505 470 35 6.9% BBNPLANET AS7122 111 78 33 29.7% MTS ADVANCED Network Policy AS4307 32 1 31 96.9% SVINET-1 AS11515 32 1 31 96.9% UNKNOWN For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html  2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report  3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report